5556081 has 8 divisors (see below), whose sum is σ = 7663680. Its totient is φ = 3576272.

The previous prime is 5556079. The next prime is 5556091. The reversal of 5556081 is 1806555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5556081 - 2¹ = 5556079 is a prime.

It is a super-2 number, since 2×5556081² = 61740072157122, which contains 22 as substring.

5556081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5556071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31845 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (957960).

Almost surely, 2^5556081 is an apocalyptic number.

It is an amenable number.

5556081 is a deficient number, since it is larger than the sum of its proper divisors (2107599).

5556081 is a wasteful number, since it uses less digits than its factorization.

5556081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63895.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 5556081 is about 2357.1340649187. The cubic root of 5556081 is about 177.1153450348.

Adding to 5556081 its sum of digits (30), we get a triangular number (5556111 = T₃₃₃₃).

The spelling of 5556081 in words is "five million, five hundred fifty-six thousand, eighty-one".